Singler can shoot, but doesn't have the build, speed, or agility that Butler does. You are cherry-picking on the basis of a flawed argument. Teams regularly draft and trade for players based on potential. That's the whole point of picks like Jan Vesely (6th pick in 2011 draft), for example. Vesely is a Euro, a year younger than Butler, and was drafted 6th. Butler played 2 seasons in the Big East, and was drafted 30th.